drm/amdkfd: heavy-weight flush TLB after unmap

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Need do a heavy-weight TLB flush to make sure we have no more dirty data
in the cache for the unmapped pages.

Define enum TLB_FLUSH_TYPE, add flush_type parameter to
amdgpu_amdkfd_flush_gpu_tlb_pasid.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Philip Yang 2021-05-13 12:30:48 -04:00 • committed by Alex Deucher

parent 7a3ae1e249

commit 765385ec00

4 changed files with 13 additions and 6 deletions

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4

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c

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9

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h

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2

drivers/gpu/drm/amd/amdkfd/kfd_process.c

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4

drivers/gpu/drm/amd/amdkfd/kfd_svm.c

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